#637535
Closest named color: Muddy Green (#657432). oklch(53.3% 0.092 122.6), rgb(99, 117, 53).
Aa
White text reads best on this color (5.08:1).
About this color
#637535 is a medium-dark, moderately saturated yellow. In OKLCH its lightness is 53%, its chroma 0.092 and its hue 123°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Muddy Green (#657432), ΔE 0.004 away. White text reads best on it, at 5.08:1.
| Hue family | Yellows |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.092) |
| Temperature | in between |
| Nearest name | Muddy Green (#657432) |
| Black text | 4.12:1 |
| White text | 5.08:1 |
Values
| HEX | #637535 |
| RGB | rgb(99, 117, 53) |
| HSL | hsl(77, 38%, 33%) |
| OKLCH | oklch(53.3% 0.092 122.6) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #637535 | 5.08:1 | AA | Lc -80.5 | Fine for body text |
| Black text on #637535 | 4.12:1 | AA large text | Lc 29.0 | Dividers and decoration only |
| #637535 text on white | 5.08:1 | AA | Lc 75.1 | Fine for body text |
| #637535 text on black | 4.12:1 | AA large text | Lc -26.7 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 600.
-
Step 50
50
#F5F6F2
oklch(97.1% 0.005 117.9)
-
Step 100
100
#E8EBE3
oklch(93.6% 0.011 123.5)
-
Step 200
200
#D6DCCB
oklch(88.5% 0.024 122.8)
-
Step 300
300
#BBC5A8
oklch(80.8% 0.041 122.8)
-
Step 400
400
#99A87A
oklch(70.8% 0.066 122.8)
-
Step 500
500
#809257
oklch(63.1% 0.085 122.7)
-
Step 600
600 (this color)
#637535
oklch(53.3% 0.092 122.6)
-
Step 700
700
#58682E
oklch(49% 0.085 122.4)
-
Step 800
800
#485527
oklch(42.7% 0.07 122.4)
-
Step 900
900
#3C4624
oklch(37.6% 0.055 122.5)
-
Step 950
950
#232916
oklch(26.9% 0.034 123)
#637535 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #7B6F2F | 0.038 |
| Deuteranopia (no green cones) | #796E39 | 0.040 |
| Tritanopia (no blue cones) | #677067 | 0.076 |
| Achromatopsia (no color) | #6E6E6E | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #637535
#637535
oklch(53.3% 0.092 122.6)
- #775F99
#775F99
oklch(53.3% 0.092 302.4)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #637535, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muddy Green #657432 ΔE 0.004
- Military Green #667C3E ΔE 0.022
- Dark Moss Green #606C38 ΔE 0.029
- Brown Green #706C11 ΔE 0.033
- Browny Green #6F6C0A ΔE 0.034
- Murky Green #6C7A0E ΔE 0.036
- Dark Olive Green #556B2F ΔE 0.038
- Olive Green #677A04 ΔE 0.038
Use #637535 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.